Electric ignition system for internal-combustion motors.



G. HONOLD & 0. HEINS. V ELECTRIC IGNITION SYSTEM FOR INTERNAL COMBUSTION MOTORS. APPLICATION FILED SEPT. 16, 1909.

1,066,904. Patented July 8, 1913.-

Mwlesss I m AID/5.

UNITED STATES PATENT OFFICE.

GOTTLOB HON'QLD, or sr'ur'rsan'r, Gan-near, any o'rcro ga ns, or NEW YQR N. Y.,

ASSIGNORS TO THE FIRM or ROBERT oson, or s ru'r'roan'r, GERMANY.

ELECTRIC IGNITION SYSTEM FOB;INTERNAL1 COBUSTION MOTORS.

Speclflcati on of Letters Patent.

Patented J nly 8, 1913.

Application measspte iber 16,1809, Serial No. 5 1a,15

To all whom it may concern:

Be it known that we, ,Go'rrnon Honor, engineer, a subjectof the German Emperor, and resident of ll-1;3 Hoppenlaustrasse,

Stuttgart, Germany, and O'rro Hams, engi ueer, a subject of the German Emperor, and resident of 160 West Fifty-sixth street, New York, N. Y., United States of America, have invented certain new and useful Improvements in Electric Ignition Systems for Internal-Combustion Motors; and we dohereby declare the followin to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to a system for the product ion of ignition sparks for the .igni: tion of the gas mixture in internal combustion motors. and its object is to provide such a system in which there is used a magneto, that is, a magneto electric generator such as the shuttle armature type, without the complication of a secondary winding or an induction coil associated therewith, and which shall still be suitable for use in such service as the driving of motor vehicles, where the motor has to be started by a cranking operation. To this end there is arranged in conjunction with a magneto having a single winding, and an electro-magnetically actuated spark-drawing device, a battery which is so arranged that during the cranking operation, when the battery is in circuit, it is reinforced by the current from the magneto.

The drawing illustrates diagrammatically the proposed system.

m is a magneto of the shuttle armature type having a single winding 0 and carrying on its armature shaft a cam for actuating the interrupter d and a commutator for commutating the armature current, it being understood that the two ends of the arma ture winding will be permanently connected, as indicated by conductors a and a, to the two commutator segments k and 10 which are insulated from each other, in the ordinary way. Associated with the commutator, in position to bear upon the segments is and k are two brushes 2" and '5 the brush 1? being grounded through the lead 0 and the brush 2' being connected through 'the lead 0 to one side of the battery h on the one hand, and to one point of the two point handswitch g, on the other hand.

The other side of the battery is connected to the other. point of the hand-switch g, and from the. pivot of that switch the conductor n leads to the electro-magnetically actuated:

spark-drawing device 1.

armature l which, under the action of grav- This device is of 60- .Well known-construction and has a pivoted ity, remains normally in the position to .close the spark contacts. The device also has a; winding as shown connected at one.

end to conductor. n and grounded at the other end on the casing of the motor. When current passes into this winding the armature Z is drawn to the position shown in the naa d b r hraws..- t e sh rk; a

I the. sparking points, and as soon as the currentis interrupted returns toits circuitclosing position. There is also led from the pivot of the switch 9 a conductor 1, forming a shunt for conducting the sparking current through the interrupter d to the ground.

The operation will be understood to be as follows: When the motor is to be cranked the switch 9 is put in the position shown in the drawing and the cranking of the machine rotates the armature of the magneto, which is to be connected to the motor shaft as usual. The interrupter cam is so set as to open the shunt f when the armature of the magneto is at the point of maximum generation, and at this instant the segments la and k are under the brushes, as shown. The result is that the current generated in the magneto flows through conductor a, segment k brush 2', conductor 0, battery h, switch 9, and, while interrupter d is closed, through the shunt, comprising conductor f, interrupter d, frame of the machine conductor '0, brush i segment I0 and conductor a to the other end of the armature Winding. At the moment of maximum generation the shunt is opened by the interrupter cam and the battery current reinforced by the armature current flows from switch 9, through winding of magnet 1, frame of the machine, conductor 0 etc., as before, and the first spark is produced. After a half revolution of the magneto armature the segment 10 will be under the brush 2' and the segment is under the brush The current generated by the magneto will, however, have been reversed with the result that the current supplied to the battery is always in the same direction. If the commutator were omitted the magneto current would oppose the battery current onevery alternate maxlmum point. After the motor is started the switch 9 will be drawn into theposition indicated by a dotted line and the path of the current will be the same as before, except that the battery is cut out.

\Vhat we claim is V 1. An electric ignition system for internal combustion motors, having a magneto and a sparking device to which the current generatedby the magneto is supplied, in combi? nation with a battery and a switch and connecting conductors for connecting the battery in series with the armature winding of the magneto or cutting it out of circuit at will, and a commutator between the armature winding of the magneto, and the battery for commutating the current from the magneto, w ereby the current from the magneto is supplied to the battery always in the same-direction when theb attery is in circuit, substantially as described.

2. An electric ignition system for internalcombustion motors, having a magneto, a magnetically actuated spark-drawing deivice, and an interrupter controlling the grounding of the sparking current, in combination with a battery and a. switch and connecting conductors for connecting the battery in series with the armature winding of the magneto or cutting it out of circuit at will, and a commutator between the armature winding of the magneto and the battery for 'commutating the current from the magneto, whereby the currentfrom the magneto is supplied to the battery always in the same direction when thebattery is in circuit, substantially as described.

In testimony whereof we afiix our signatures, in presence of two witnesses.

G TTLOB HONOLD. OTTO HEINS.

Witnesses:

Max Ansonfi'rz,

v ERNST ULMER. 

